Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A display device, comprising: a display panel including a display region; a data driver that supplies data signals to the display region; data lines that connect the data driver to the display region; a scan driver disposed on the display panel and having a plurality of main stages, a first dummy stage, and a second dummy stage, the scan driver sequentially supplies scan signals from the main stages to the display region; scan lines that connect the main stages of the scan driver to the display region; a first dummy line positioned outside of the display region adjacent to a first side of the display region, the first dummy line connected to the first dummy stage of the scan driver, the first dummy line intersects at least one of the data lines; and a second dummy line positioned outside of the display region adjacent to a second side of the display region that is opposite the first side, the second dummy line connected to the second dummy stage of the scan driver, wherein the first dummy stage supplies a start signal to at least one of the main stages, and the second dummy stage supplies a reset signal to at least one of the main stages.
2. The display device according to claim 1 , wherein the first dummy line is disposed in parallel to the scan lines.
A display device includes a display panel with scan lines and data lines for driving pixels. The device also has a first dummy line positioned parallel to the scan lines. This dummy line is electrically isolated from the scan lines and data lines, serving as a shield to reduce interference and improve signal integrity. The dummy line may be connected to a fixed voltage or grounded to stabilize the electrical environment around the active lines. This configuration helps minimize crosstalk and noise, enhancing display performance. The dummy line can be positioned adjacent to the scan lines or data lines, depending on the specific layout requirements. The display panel may further include a second dummy line parallel to the data lines, providing additional shielding. The dummy line structure is particularly useful in high-resolution or high-frequency displays where signal integrity is critical. The design ensures reliable signal transmission while maintaining the structural integrity of the display panel.
3. The display device according to claim 2 , wherein the first dummy line is positioned between the display region and the data driver.
A display device includes a display region with multiple pixels and a data driver that supplies data signals to the display region. The device also has a first dummy line positioned between the display region and the data driver. The first dummy line is electrically connected to the data driver and is configured to receive a dummy signal from the data driver. The dummy signal is synchronized with the data signals supplied to the display region. The first dummy line is not electrically connected to any pixel in the display region. The display device may also include a second dummy line positioned between the display region and the data driver, where the second dummy line is electrically connected to the data driver and receives a dummy signal synchronized with the data signals. The second dummy line is also not electrically connected to any pixel in the display region. The dummy lines help stabilize signal transmission by reducing signal reflections or noise, ensuring reliable data signal delivery to the display region. The display device may be an organic light-emitting diode (OLED) display or another type of display technology. The dummy lines are positioned to minimize interference with the active display region while maintaining signal integrity.
4. The display device according to claim 1 , wherein a length of the first dummy line is different from that of the scan lines.
A display device includes a display panel with scan lines and data lines for driving pixels, along with a first dummy line positioned adjacent to the scan lines. The first dummy line is electrically isolated from the scan lines and has a length that differs from the scan lines. This design helps mitigate signal interference or distortion at the edges of the display panel, improving display uniformity and reliability. The dummy line may be shorter or longer than the scan lines, depending on the specific layout and electrical characteristics required. The display panel may also include a second dummy line adjacent to the data lines, which is similarly isolated and may have a different length from the data lines. The dummy lines prevent edge effects that could degrade image quality, such as flicker or uneven brightness, by providing a consistent electrical environment near the panel boundaries. This configuration is particularly useful in high-resolution or large-area displays where edge distortions are more pronounced. The dummy lines do not actively drive pixels but serve as passive electrical shielding or balancing elements to enhance overall display performance.
5. The display device according to claim 4 , wherein the first dummy line includes an end portion disposed between the data lines.
A display device includes a substrate with a display area and a peripheral area surrounding the display area. The display area has a plurality of data lines and a plurality of gate lines intersecting the data lines to define pixel regions. The peripheral area includes a first dummy line connected to the data lines and a second dummy line connected to the gate lines. The first dummy line has an end portion positioned between the data lines. The first dummy line is configured to reduce parasitic capacitance between the data lines and the second dummy line, improving signal integrity and display performance. The second dummy line is configured to reduce parasitic capacitance between the gate lines and the first dummy line. The display device may further include a driving circuit in the peripheral area to drive the data lines and gate lines, ensuring uniform signal distribution across the display area. The first dummy line's end portion between the data lines minimizes interference and signal distortion, enhancing display quality. The overall structure optimizes electrical characteristics and reliability in the display device.
6. The display device according to claim 1 , wherein the first dummy line and the second dummy line are disposed in parallel to the scan lines, and wherein the data lines extend through the first side of the display region to at least the second side.
This invention relates to display devices, specifically addressing the issue of signal interference and signal integrity in display panels. The device includes a display region with scan lines and data lines, where the data lines extend from a first side of the display region to at least a second side. To mitigate signal interference, the device incorporates a first dummy line and a second dummy line, both disposed parallel to the scan lines. These dummy lines are positioned to reduce crosstalk and improve signal stability, particularly in high-resolution or high-frequency display applications. The dummy lines may be electrically connected to a common voltage or ground to further enhance noise suppression. The arrangement ensures that data signals transmitted through the data lines remain unaffected by adjacent scan lines, improving overall display performance and image quality. The invention is particularly useful in active-matrix organic light-emitting diode (AMOLED) displays or liquid crystal displays (LCDs) where signal integrity is critical. The parallel alignment of the dummy lines with the scan lines optimizes space efficiency while maintaining effective shielding. This design helps prevent signal distortion, ensuring accurate pixel control and reducing power consumption by minimizing unnecessary signal corrections.
7. The display device according to claim 6 , wherein the data lines extend past the second side of the display region, and the second dummy line intersects at least one of the data lines.
A display device includes a display region with a first side and a second side, where the first side is adjacent to a driver circuit and the second side is opposite the first side. The device includes data lines that extend past the second side of the display region and a second dummy line that intersects at least one of the data lines. The second dummy line is positioned outside the display region and is electrically isolated from the data lines. The display device may also include a first dummy line that intersects the data lines on the first side of the display region. The dummy lines help reduce signal interference and improve display uniformity by providing a balanced electrical environment around the display region. The data lines transmit signals from the driver circuit to pixels within the display region, and the intersection with the dummy lines ensures consistent signal integrity across the display. This configuration is particularly useful in high-resolution displays where signal integrity and uniformity are critical. The dummy lines may be connected to a common voltage or left floating to further enhance performance. The overall design minimizes parasitic effects and enhances the reliability of the display device.
8. A display device, comprising: a display panel including a display region; a data driver connected to the display region by data lines, the data driver positioned adjacent to a first side of the display region; a first scan driver on the display panel and positioned adjacent to a second side of the display region, the first scan driver including a first plurality of main stages, first top dummy stages configured to supply a start signal to at least one of the main stages of the first scan driver, and first bottom dummy stages configured to supply a reset signal to at least one of the main stages of the first scan driver, the first scan driver connected to the display region by first scan lines; a second scan driver on the display panel and positioned adjacent to a third side of the display region that is opposite to the second side, the second scan driver including a second plurality of main stages, second top dummy stages configured to supply a start signal to at least one of the main stages of the second scan driver, and second bottom dummy stages configured to supply a reset signal to at least one of the main stages of the second scan driver, the second scan driver connected to the display region by second scan lines; at least one first dummy line outside the display region and positioned adjacent to a fourth side of the display region that is opposite to the first side, the at least one first dummy line extending between and connected to at least one of the first bottom dummy stages of the first scan driver and at least one of the second bottom dummy stages of the second scan driver; and at least one top dummy line outside the display region and positioned between the data driver and the first side of the display panel, the at least one top dummy line connected to at least one of the first top dummy stages of the first scan driver or the second top dummy stages of the second scan driver. wherein the first scan lines are connected to the main stages of the first scan driver, and the second scan lines are connected to the main stages of the second scan driver.
This invention relates to a display device with an improved scan driver configuration. The device includes a display panel with a display region and a data driver positioned adjacent to one side of the display region, connected by data lines. Two scan drivers are integrated on the display panel, positioned on opposite sides of the display region. Each scan driver includes multiple main stages, top dummy stages for supplying start signals, and bottom dummy stages for supplying reset signals. The scan drivers are connected to the display region by scan lines. The device also includes dummy lines outside the display region: first dummy lines connect bottom dummy stages of both scan drivers, while top dummy lines are positioned between the data driver and the display region, connecting to the top dummy stages of either scan driver. This configuration ensures proper signal distribution and synchronization between the scan drivers, improving display performance and reliability. The arrangement minimizes signal interference and optimizes the layout for efficient operation.
9. The display device according to claim 8 , wherein the data lines extend through the display region beyond the fourth side, and the at least one first dummy line intersects at least one of the data lines.
A display device includes a display region with a plurality of data lines and at least one first dummy line. The data lines extend through the display region beyond a fourth side of the display region, and the first dummy line intersects at least one of the data lines. The display device also includes a plurality of gate lines and at least one second dummy line, where the gate lines extend through the display region beyond a first side of the display region, and the second dummy line intersects at least one of the gate lines. The first and second dummy lines are electrically connected to each other, and the first dummy line is electrically connected to a first dummy pad, while the second dummy line is electrically connected to a second dummy pad. The display device further includes a plurality of pixels arranged in the display region, each pixel including a switching element connected to one of the data lines and one of the gate lines. The dummy lines and pads are used to test the electrical connections and integrity of the data and gate lines, ensuring proper functionality of the display device. This design helps detect and prevent defects in the wiring structure, improving manufacturing yield and reliability.
10. The display device according to claim 8 , wherein the at least one top dummy line includes: at least one second dummy line connected to at least one of the first top dummy stages of the first scan driver and positioned between the data driver and the first side of the display panel, the at least one second dummy line intersects at least one data line; and at least one third dummy line connected to at least one of the second top dummy stages of the second scan driver and positioned between the data driver and the first side of the display panel, the at least one third dummy line intersects at least one data line.
This invention relates to display devices, specifically addressing signal interference and display quality issues in display panels with integrated scan drivers. The problem arises when scan drivers, which control pixel activation, are positioned along the edges of the display panel, potentially causing signal crosstalk or uneven display performance due to proximity to data lines that transmit image data. The invention introduces a solution by incorporating dummy lines connected to dummy stages of the scan drivers to mitigate these effects. The dummy lines are positioned between the data driver and the edge of the display panel, intersecting data lines to reduce interference. The dummy lines are connected to dummy stages of the scan drivers, which are non-functional or partially functional stages designed to stabilize signal transmission. The second and third dummy lines, connected to the first and second scan drivers respectively, further enhance signal integrity by providing additional shielding or grounding paths. This configuration ensures uniform signal distribution and prevents distortion, improving overall display quality. The dummy lines are strategically placed to intersect data lines, creating a barrier that minimizes crosstalk and ensures reliable signal transmission across the display panel.
11. The display device according to claim 10 , wherein the at least one second dummy line and the at least one third dummy line intersect different data lines.
A display device includes a substrate with a display area and a peripheral area surrounding the display area. The display area contains a plurality of pixels arranged in rows and columns, each pixel connected to a data line and a gate line. The peripheral area includes at least one first dummy line, at least one second dummy line, and at least one third dummy line. The first dummy line is connected to a first gate line in the display area. The second and third dummy lines are connected to different data lines in the display area. The second dummy line is connected to a second gate line in the display area, and the third dummy line is connected to a third gate line in the display area. The second and third dummy lines intersect different data lines, ensuring proper electrical connections and signal integrity in the peripheral area. This configuration helps prevent signal interference and improves the reliability of the display device by maintaining consistent electrical properties across the substrate. The dummy lines compensate for variations in electrical characteristics that may occur due to the layout of the display area and peripheral area, ensuring uniform performance. The arrangement of the dummy lines also reduces the risk of defects and enhances the overall stability of the display device.
12. The display device according to claim 10 , wherein the at least one second dummy line and the at least one third dummy line are disposed in parallel to the scan lines outside the display region.
A display device includes a display region with scan lines and data lines for driving pixels, along with dummy lines positioned outside the display region to reduce interference and improve display quality. The dummy lines include at least one second dummy line and at least one third dummy line, which are arranged parallel to the scan lines. These dummy lines are electrically connected to the scan lines and are used to stabilize the electrical characteristics of the display device, particularly in areas near the edges of the display region. By placing these dummy lines outside the display region, the device minimizes signal distortion and ensures uniform performance across the entire display area. The arrangement helps mitigate issues such as flickering, signal crosstalk, and uneven brightness, which can occur due to electrical interference or improper grounding. The dummy lines may also be connected to a common voltage or ground to further enhance stability. This design is particularly useful in high-resolution displays where precise control of electrical signals is critical. The parallel alignment of the dummy lines with the scan lines ensures efficient signal distribution and reduces the risk of electrical anomalies that could degrade image quality.
13. The display device according to claim 12 , wherein the at least one second dummy line and the at least one third dummy line are aligned with each other.
A display device includes a substrate with a display area and a peripheral area surrounding the display area. The display area contains pixels for displaying images, while the peripheral area includes dummy lines that do not contribute to image display but help maintain uniformity and reliability in the display. The device has at least one first dummy line in the peripheral area, which is connected to a power supply line to stabilize voltage distribution. Additionally, there are at least one second dummy line and at least one third dummy line in the peripheral area, which are electrically isolated from the power supply line. These dummy lines are aligned with each other to ensure consistent spacing and electrical characteristics, reducing variations in the display's performance. The alignment of the second and third dummy lines helps prevent defects and improves the overall reliability of the display device. The dummy lines may be arranged in a specific pattern to optimize the electrical and mechanical properties of the peripheral area, ensuring uniform display quality across the entire panel. This design is particularly useful in high-resolution displays where maintaining uniformity is critical.
14. The display device according to claim 10 , wherein the at least one second dummy line includes a plurality of second dummy lines, the at least one third dummy line includes a plurality of third dummy lines, and a number of the second dummy lines is equal to a number of the third dummy lines.
The invention relates to display devices, specifically addressing signal integrity and interference issues in display panels. The problem solved involves minimizing signal distortion and cross-talk in display panels by optimizing the arrangement of dummy lines, which are non-functional conductive lines used to balance electrical properties and reduce interference. The display device includes a substrate with a display area and a peripheral area surrounding it. Within the peripheral area, multiple signal lines transmit data and control signals to the display area. To mitigate signal interference, the device incorporates dummy lines that do not carry active signals but help maintain electrical balance. These dummy lines are categorized into first, second, and third dummy lines based on their position and function. The second and third dummy lines are arranged in the peripheral area, with the second dummy lines positioned closer to the display area and the third dummy lines positioned farther away. The second dummy lines are connected to a first voltage line, while the third dummy lines are connected to a second voltage line. The invention specifies that the number of second dummy lines must equal the number of third dummy lines to ensure symmetrical electrical distribution, reducing signal distortion and improving display performance. This balanced arrangement helps maintain consistent signal integrity across the display panel.
15. The display device according to claim 14 , wherein the at least one first dummy line includes a plurality of first dummy lines, and a number of the first dummy lines is equal to the number of second dummy lines and the number of third dummy lines.
A display device includes a display panel with a plurality of signal lines and dummy lines. The dummy lines are used to reduce signal interference and improve display uniformity. The device includes at least one first dummy line, a plurality of second dummy lines, and a plurality of third dummy lines. The first dummy line is positioned adjacent to a signal line to reduce interference. The second dummy lines are arranged in a first direction and connected to a first power line, while the third dummy lines are arranged in a second direction and connected to a second power line. The first dummy line, second dummy lines, and third dummy lines are configured to stabilize the display panel's electrical characteristics. The number of first dummy lines is equal to the number of second dummy lines and third dummy lines, ensuring balanced electrical compensation across the display. This configuration helps mitigate signal distortion and improves image quality by maintaining consistent electrical properties throughout the panel. The dummy lines are strategically placed to minimize interference without adding unnecessary complexity to the panel structure. The device is particularly useful in high-resolution displays where signal integrity is critical.
16. The display device according to claim 14 , wherein the second dummy lines are aligned with corresponding ones of the third dummy lines.
A display device includes a substrate with a display area and a peripheral area surrounding the display area. The display area contains a plurality of pixels arranged in rows and columns, each pixel having a light-emitting element and a driving circuit. The peripheral area includes a plurality of first dummy lines extending parallel to the rows of pixels and a plurality of second dummy lines extending parallel to the columns of pixels. The first dummy lines are electrically connected to the second dummy lines, forming a grid-like structure in the peripheral area. The second dummy lines are aligned with corresponding third dummy lines, which are additional conductive lines positioned in the peripheral area to further stabilize the electrical and mechanical properties of the substrate. This alignment ensures uniform stress distribution and reduces the risk of defects during manufacturing or operation. The dummy lines also help prevent moisture or contaminants from infiltrating the display area, improving reliability. The arrangement of the dummy lines and their alignment with corresponding lines in the peripheral area enhances the structural integrity and electrical performance of the display device.
Unknown
March 24, 2020
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